Alert archive / Kansas / Mesoscale Discussions in 2014

Mesoscale Discussion 337

April 13, 201413 counties in Kansas; Buchanan County, Clinton County, Platte County, Missouri

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2014, 2:32 PM CDT for 13 counties in Kansas; Buchanan County, Clinton County, Platte County, Missouri. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Apr 13, 2014, 2:32 PM CDT (19:32 UTC)
Expired
Apr 13, 2014, 4:00 PM CDT
In force
88 min
Issued by
the Storm Prediction Center

Counties Atchison County, KS, Coffey County, KS, Doniphan County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Greenwood County, KS, Jefferson County, KS, Johnson County, KS, Leavenworth County, KS, Osage County, KS, Woodson County, KS, Wyandotte County, KS, Buchanan County, MO, Clinton County, MO, Platte County, MO

The radar

The Topeka radar (KTWX), 70 km from the middle of the area, began a volume at 19:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Topeka, KS (KFOE), launched 12:00Z, 7.5 hours before the alert went out and 48 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 12:00Z on 2014-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 923 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2014-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 290 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
923 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
873 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
290 m²/s²
0-3 km storm-relative helicity
384 m²/s²
Significant tornado parameter
1.1
Supercell composite
13.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 9:12 PM CDTMesoscale DiscussionSPCAtchison, Brown, Chase, Dickinson, Doniphan, Geary and 11 more63 min
Apr 12, 11:26 PM CDTMesoscale DiscussionSPCAtchison, Brown, Doniphan64 min
Apr 13, 7:41 AM CDTMesoscale DiscussionSPCDoniphan2 hr
Apr 13, 11:10 AM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Brown, Butler, Chase and 27 more3 hr
Apr 13, 12:02 PM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Brown, Butler, Chase and 34 more7 hr
Apr 13, 1:16 PM CDTMesoscale DiscussionSPCJewell, Norton, Phillips, Smith6 hr
Apr 13, 4:13 PM CDTMesoscale DiscussionSPCCherokee32 min
Apr 13, 4:27 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford7 hr
Apr 13, 6:01 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Boone, Callaway and 41 more59 min

Nearby

Mesoscale Discussions in Kansas, 2014Mesoscale Discussions in Missouri, 2014Every mesoscale discussion in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.